editbook.~pas

来自「完整的delphi书籍源代码,大家有空的时候自己慢慢看看」· ~PAS 代码 · 共 77 行

unit EditBook;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, Mask, DBCtrls, ExtCtrls, DB, DBTables, Grids,
  DBGrids;

type
  TEditBookFrm = class(TForm)
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    BitBtn1: TBitBtn;
    Table1: TTable;
    DataSource1: TDataSource;
    Database1: TDatabase;
    DBGrid1: TDBGrid;
    Label10: TLabel;
    Edit1: TEdit;
    Label9: TLabel;
    DBComboBox1: TDBComboBox;
    Label6: TLabel;
    DBComboBox2: TDBComboBox;
    DBNavigator1: TDBNavigator;
    procedure BitBtn1Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure DataSource1DataChange(Sender: TObject; Field: TField);
   
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  EditBookFrm: TEditBookFrm;

implementation



{$R *.dfm}




procedure TEditBookFrm.BitBtn1Click(Sender: TObject);
begin
  close;
end;

procedure TEditBookFrm.FormShow(Sender: TObject);
begin
  with Table1  do
    begin
       IndexFieldNames:='BookNo';
       Open;
       Edit1.Text:=inttostr(recordcount);
    end;
end;

procedure TEditBookFrm.DataSource1DataChange(Sender: TObject; Field: TField);
begin
   Edit1.Text:=inttostr(Table1.recordcount);
end;

end.